package socket;

import com.sun.org.apache.xalan.internal.xsltc.trax.OutputSettings;

import java.io.*;
import java.net.Socket;
import java.nio.charset.StandardCharsets;
import java.util.Scanner;

public class Client {
    private Socket socket;

    private Client() {
        try {
            System.out.println("正在连接服务端...");
            socket = new Socket("localhost", 8088);
            System.out.println("与服务端建立连接！");

        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    public void start() {
        try {
            //启动读取服务端消息
            ServerHandler handler = new ServerHandler();
            Thread t = new Thread(handler);
            t.setDaemon(true);  //守护线程，我们不给服务端发消息了，
            t.start();

            OutputStream out = socket.getOutputStream();
            OutputStreamWriter osw = new OutputStreamWriter(out, StandardCharsets.UTF_8);
            BufferedWriter bw = new BufferedWriter(osw);
            PrintWriter pw = new PrintWriter(bw, true);


            Scanner scanner = new Scanner(System.in);
            System.out.println("开始输入内容，单独输入exit退出");
            while (true) {
                String line = scanner.nextLine();
                if ("exit".equalsIgnoreCase(line)) {
                    break;
                }
                pw.println(line);

                /*line = br.readLine();
                System.out.println(line);*/
            }

            pw.close();
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            try {
                //关闭socket时会与服务端进行挥手操作
                socket.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }

    }

    public static void main(String[] args) {
        Client client = new Client();
        client.start();
    }

    /**
     * 该线程负责读取服务器发送过来的消息
     */
    private class ServerHandler implements Runnable {
        public void run() {
            try {
                InputStream in = socket.getInputStream();
                InputStreamReader isr = new InputStreamReader(in, StandardCharsets.UTF_8);
                BufferedReader br = new BufferedReader(isr);

                String message;
                while ((message = br.readLine()) != null) {
                    System.out.println(message);
                }
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
}
